Some things in nature are bigger than hen scratchings like this can describe. Take the number “1 billion,” for example. Politicians talk about billions of dollars, astronomers talk about billions of stars. But how much is a billion, really? googletag.cmd.push(function () { // Define Slot… Read More
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Judging the size and value of the universe, as measured in starlight and grains of sand
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Judging the size and value of the universe, as measured in starlight and grains of sand